Home / 155,627.60-214,757.28-91,971.32

Finding the Fourth Proportional to 155,627.60, 214,757.28 and 91,971.32

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Solution

The fourth proportional to 155,627.60, 214,757.28 and 91,971.32 is: 126,915.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,627.60 : 214,757.28 = 91,971.32 : x
  2. Step 2: Convert to fraction form
    155,627.60/214,757.28 = 91,971.32/x
  3. Step 3: Cross multiply
    155,627.60x = 214,757.28 × 91,971.32
  4. Step 4: Simplify right side
    155,627.60x = 19,751,510,521.21
  5. Step 5: Solve for x
    x = 19,751,510,521.21/155,627.60
  6. Step 6: Final answer
    x = 126,915.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.